Lead Architect: High-Performance Media & Fintech Platform (MVP Phase)

Job ID: 40070573

Budget: $750 – $1,500 USD

PLEASE READ COMPLETELY
PLEASE READ COMPLETELY
PLEASE READ COMPLETELY

We are seeking a Lead Systems Architect to finalize the backend and integrations for a hybrid platform that merges streaming media, a custom fintech ledger, and a direct-response ad engine.

Our internal team has already developed the frontend UI/UX and visual architecture. We now need a heavy-hitter to build the “Brain”—the secure, logic-heavy engine that powers the platform’s financial and security layers.



Use the phrase “I can build it” to let me know you have read and understand the project and can do the job add your price and timeframe

The Technical “Engineering Canon”

The successful candidate must be able to build according to our strict internal standards:
1. Immutable Fintech Ledger
Design a double-entry accounting system where database UPDATE and DELETE functions are restricted for financial tables. All errors must be handled via parent-referenced reversal logic.
2. Secure Content Delivery (HLS)
Implement HLS streaming with cryptographically signed tokens (TTL under 5 minutes). If you only know how to serve raw MP3 or MP4 files, please do not apply.
3. Ad-Tech Attribution
Build the backend for a direct-response engine, ensuring all native tel: (click-to-call) and WebView actions are fully tracked, attributed, and logged.
4. Behavioral Fraud Scoring
Implement logic to detect mechanical listening and impossible geography to protect advertiser spend. High-risk sessions must trigger an automated payout “kill switch” within the ledger.



Current Progress & Role
• Frontend: Core UI/UX is complete. You will have the authority to refine the frontend as needed for seamless integration and performance.
• Requirements: A full Engineering Canon (technical specification) is ready to be shared upon signing an NDA/IP agreement.
• Phase 1 Budget: under $2,000 (fixed-price, milestone-based).
• Long-Term: Monthly retainer option available post-launch for maintenance and upgrades ($300–$500/month).



I need 30 days of maintenance (factored into your price before the post launch long term job begins) - my internal team will check every milestone before we move to the next (milestones will be broken down once we start chatting) - this is a long term gig I will be asking questions if you don’t like answering questions DO NOT BID
To ensure we are aligned before I share the full 'Engineering Canon' and internal assets, here is the high-level technical overview:

1. The Stack:
• Frontend: React Native (Current build by internal team).
• Backend: Node.js / Express (Preferred for scalability).
• Database: PostgreSQL (Required for relational integrity of the Ledger).
• Infrastructure: AWS (S3 for media, CloudFront for HLS delivery, Amazon Fraud Detector).

2. Data Models:
The core model is a Double-Entry Ledger. Every transaction is a ledger entry with debit_account, credit_account, amount, and parent_entry_id. You will be integrating this with the Stripe Connect API for multi-party payouts.

3. Infrastructure/API Access:
Full access to the GitHub repository, AWS Console, and Stripe Sandbox will be granted immediately upon the signing of our NDA and IP Agreement.

4. Milestone Priorities:
• Priority 1: Immutable Ledger & Stripe Sync (The Financial Core).
• Priority 2: Secure HLS Streaming & Signed Token logic (The Media Layer).
• Priority 3: Behavioral Fraud Scoring & Ad-Attribution.
• Priority 4: QA, Store Submission, and Handover.

Every milestone will be checked by internal team